From their Facebook page:
Get around safely this WA DAY long weekend with $25 off ALL rides. RAC Members also get 10% off all rides.
Simply enter WA16 as the promo code to redeem your discount. Offer valid until 12 midnight on Monday 06/06/16.
For those that don't know Shofer is a service similar to uber.
I Just used the code for a trip to the airport. $60 fare now $35.
Reviews for the app are bad. Anyone tried the service?